diff --git a/.gitignore b/.gitignore
index eda3dcd..ad9614c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,9 @@ scratch/
 
 # developer tools
 .ccls-cache/
+
+# vivado
+.Xil/
+*.jou
+*.log
+*.str
diff --git a/toolchain/vivado/boards/xc7a35ticsg324-1l/xc7a35ticsg324-1l.xpr b/toolchain/vivado/boards/xc7a35ticsg324-1l/xc7a35ticsg324-1l.xpr
index 2d84c96..fb15086 100644
--- a/toolchain/vivado/boards/xc7a35ticsg324-1l/xc7a35ticsg324-1l.xpr
+++ b/toolchain/vivado/boards/xc7a35ticsg324-1l/xc7a35ticsg324-1l.xpr
@@ -1,9 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Product Version: Vivado v2020.1 (64-bit)              -->
-<!--                                                         -->
-<!-- Copyright 1986-2020 Xilinx, Inc. All Rights Reserved.   -->
+<!-- Product Version: Vivado v2023.1 (64-bit)                              -->
+<!--                                                                         -->
+<!-- Copyright 1986-2022 Xilinx, Inc. All Rights Reserved.                   -->
+<!-- Copyright 2022-2023 Advanced Micro Devices, Inc. All Rights Reserved.   -->
 
-<Project Version="7" Minor="49" Path="/home/dan/code/github.com/mosscomp/moss/toolchain/vivado/boards/xc7a35ticsg324-1l/xc7a35ticsg324-1l.xpr">
+<Project Product="Vivado" Version="7" Minor="63" Path="/home/hasheddan/code/github.com/mosscomp/moss/toolchain/vivado/boards/xc7a35ticsg324-1l/xc7a35ticsg324-1l.xpr">
   <DefaultLaunch Dir="$PRUNDIR"/>
   <Configuration>
     <Option Name="Id" Val="944d562fd6124d98858265b7e6a4700f"/>
@@ -12,32 +13,52 @@
     <Option Name="CompiledLibDirXSim" Val=""/>
     <Option Name="CompiledLibDirModelSim" Val="$PCACHEDIR/compile_simlib/modelsim"/>
     <Option Name="CompiledLibDirQuesta" Val="$PCACHEDIR/compile_simlib/questa"/>
-    <Option Name="CompiledLibDirIES" Val="$PCACHEDIR/compile_simlib/ies"/>
     <Option Name="CompiledLibDirXcelium" Val="$PCACHEDIR/compile_simlib/xcelium"/>
     <Option Name="CompiledLibDirVCS" Val="$PCACHEDIR/compile_simlib/vcs"/>
     <Option Name="CompiledLibDirRiviera" Val="$PCACHEDIR/compile_simlib/riviera"/>
     <Option Name="CompiledLibDirActivehdl" Val="$PCACHEDIR/compile_simlib/activehdl"/>
     <Option Name="SimulatorInstallDirModelSim" Val=""/>
     <Option Name="SimulatorInstallDirQuesta" Val=""/>
-    <Option Name="SimulatorInstallDirIES" Val=""/>
     <Option Name="SimulatorInstallDirXcelium" Val=""/>
     <Option Name="SimulatorInstallDirVCS" Val=""/>
     <Option Name="SimulatorInstallDirRiviera" Val=""/>
     <Option Name="SimulatorInstallDirActiveHdl" Val=""/>
+    <Option Name="SimulatorGccInstallDirModelSim" Val=""/>
+    <Option Name="SimulatorGccInstallDirQuesta" Val=""/>
+    <Option Name="SimulatorGccInstallDirXcelium" Val=""/>
+    <Option Name="SimulatorGccInstallDirVCS" Val=""/>
+    <Option Name="SimulatorGccInstallDirRiviera" Val=""/>
+    <Option Name="SimulatorGccInstallDirActiveHdl" Val=""/>
+    <Option Name="SimulatorVersionXsim" Val="2023.1"/>
+    <Option Name="SimulatorVersionModelSim" Val="2022.3"/>
+    <Option Name="SimulatorVersionQuesta" Val="2022.3"/>
+    <Option Name="SimulatorVersionXcelium" Val="22.09.001"/>
+    <Option Name="SimulatorVersionVCS" Val="T-2022.06-SP1"/>
+    <Option Name="SimulatorVersionRiviera" Val="2022.04"/>
+    <Option Name="SimulatorVersionActiveHdl" Val="13.1"/>
+    <Option Name="SimulatorGccVersionXsim" Val="9.3.0"/>
+    <Option Name="SimulatorGccVersionModelSim" Val="7.4.0"/>
+    <Option Name="SimulatorGccVersionQuesta" Val="7.4.0"/>
+    <Option Name="SimulatorGccVersionXcelium" Val="9.3.0"/>
+    <Option Name="SimulatorGccVersionVCS" Val="9.2.0"/>
+    <Option Name="SimulatorGccVersionRiviera" Val="9.3.0"/>
+    <Option Name="SimulatorGccVersionActiveHdl" Val="9.3.0"/>
     <Option Name="BoardPart" Val=""/>
     <Option Name="ActiveSimSet" Val="sim_1"/>
     <Option Name="DefaultLib" Val="xil_defaultlib"/>
     <Option Name="ProjectType" Val="Default"/>
     <Option Name="IPOutputRepo" Val="$PCACHEDIR/ip"/>
-    <Option Name="IPDefaultOutputPath" Val="$PSRCDIR/sources_1"/>
+    <Option Name="IPDefaultOutputPath" Val="$PGENDIR/sources_1"/>
     <Option Name="IPCachePermission" Val="read"/>
     <Option Name="IPCachePermission" Val="write"/>
     <Option Name="EnableCoreContainer" Val="FALSE"/>
+    <Option Name="EnableResourceEstimation" Val="FALSE"/>
+    <Option Name="SimCompileState" Val="TRUE"/>
     <Option Name="CreateRefXciForCoreContainers" Val="FALSE"/>
     <Option Name="IPUserFilesDir" Val="$PIPUSERFILESDIR"/>
     <Option Name="IPStaticSourceDir" Val="$PIPUSERFILESDIR/ipstatic"/>
     <Option Name="EnableBDX" Val="FALSE"/>
-    <Option Name="WTXSimLaunchSim" Val="51"/>
+    <Option Name="WTXSimLaunchSim" Val="52"/>
     <Option Name="WTModelSimLaunchSim" Val="0"/>
     <Option Name="WTQuestaLaunchSim" Val="0"/>
     <Option Name="WTIesLaunchSim" Val="0"/>
@@ -62,9 +83,11 @@
     <Option Name="SimTypes" Val="tlm_dpi"/>
     <Option Name="MEMEnableMemoryMapGeneration" Val="TRUE"/>
     <Option Name="DcpsUptoDate" Val="TRUE"/>
+    <Option Name="ClassicSocBoot" Val="FALSE"/>
+    <Option Name="LocalIPRepoLeafDirName" Val="ip_repo"/>
   </Configuration>
   <FileSets Version="1" Minor="31">
-    <FileSet Name="sources_1" Type="DesignSrcs" RelSrcDir="$PSRCDIR/sources_1">
+    <FileSet Name="sources_1" Type="DesignSrcs" RelSrcDir="$PSRCDIR/sources_1" RelGenDir="$PGENDIR/sources_1">
       <Filter Type="Srcs"/>
       <File Path="$PPRDIR/../../../../rtl/uart_rx.v">
         <FileInfo>
@@ -90,10 +113,9 @@
       <Config>
         <Option Name="DesignMode" Val="RTL"/>
         <Option Name="TopModule" Val="top"/>
-        <Option Name="TopAutoSet" Val="TRUE"/>
       </Config>
     </FileSet>
-    <FileSet Name="constrs_1" Type="Constrs" RelSrcDir="$PSRCDIR/constrs_1">
+    <FileSet Name="constrs_1" Type="Constrs" RelSrcDir="$PSRCDIR/constrs_1" RelGenDir="$PGENDIR/constrs_1">
       <Filter Type="Constrs"/>
       <File Path="$PPRDIR/xc7a35ticsg324-1l.xdc">
         <FileInfo>
@@ -105,7 +127,7 @@
         <Option Name="ConstrsType" Val="XDC"/>
       </Config>
     </FileSet>
-    <FileSet Name="sim_1" Type="SimulationSrcs" RelSrcDir="$PSRCDIR/sim_1">
+    <FileSet Name="sim_1" Type="SimulationSrcs" RelSrcDir="$PSRCDIR/sim_1" RelGenDir="$PGENDIR/sim_1">
       <Filter Type="Srcs"/>
       <Config>
         <Option Name="DesignMode" Val="RTL"/>
@@ -122,7 +144,7 @@
         <Option Name="SrcSet" Val="sources_1"/>
       </Config>
     </FileSet>
-    <FileSet Name="utils_1" Type="Utils" RelSrcDir="$PSRCDIR/utils_1">
+    <FileSet Name="utils_1" Type="Utils" RelSrcDir="$PSRCDIR/utils_1" RelGenDir="$PGENDIR/utils_1">
       <Filter Type="Utils"/>
       <Config>
         <Option Name="TopAutoSet" Val="TRUE"/>
@@ -140,9 +162,6 @@
     <Simulator Name="Questa">
       <Option Name="Description" Val="Questa Advanced Simulator"/>
     </Simulator>
-    <Simulator Name="IES">
-      <Option Name="Description" Val="Incisive Enterprise Simulator (IES)"/>
-    </Simulator>
     <Simulator Name="Xcelium">
       <Option Name="Description" Val="Xcelium Parallel Simulator"/>
     </Simulator>
@@ -153,8 +172,8 @@
       <Option Name="Description" Val="Riviera-PRO Simulator"/>
     </Simulator>
   </Simulators>
-  <Runs Version="1" Minor="11">
-    <Run Id="synth_1" Type="Ft3:Synth" SrcSet="sources_1" Part="xc7a35ticsg324-1L" ConstrsSet="constrs_1" Description="Vivado Synthesis Defaults" AutoIncrementalCheckpoint="false" WriteIncrSynthDcp="false" State="current" Dir="$PRUNDIR/synth_1" IncludeInArchive="true">
+  <Runs Version="1" Minor="20">
+    <Run Id="synth_1" Type="Ft3:Synth" SrcSet="sources_1" Part="xc7a35ticsg324-1L" ConstrsSet="constrs_1" Description="Vivado Synthesis Defaults" AutoIncrementalCheckpoint="false" WriteIncrSynthDcp="false" State="current" Dir="$PRUNDIR/synth_1" IncludeInArchive="true" IsChild="false" AutoIncrementalDir="$PSRCDIR/utils_1/imports/synth_1" AutoRQSDir="$PSRCDIR/utils_1/imports/synth_1">
       <Strategy Version="1" Minor="2">
         <StratHandle Name="Vivado Synthesis Defaults" Flow="Vivado Synthesis 2020"/>
         <Step Id="synth_design"/>
@@ -164,7 +183,7 @@
       <Report Name="ROUTE_DESIGN.REPORT_METHODOLOGY" Enabled="1"/>
       <RQSFiles/>
     </Run>
-    <Run Id="impl_1" Type="Ft2:EntireDesign" Part="xc7a35ticsg324-1L" ConstrsSet="constrs_1" Description="Default settings for Implementation." AutoIncrementalCheckpoint="false" WriteIncrSynthDcp="false" State="current" Dir="$PRUNDIR/impl_1" SynthRun="synth_1" IncludeInArchive="true" GenFullBitstream="true">
+    <Run Id="impl_1" Type="Ft2:EntireDesign" Part="xc7a35ticsg324-1L" ConstrsSet="constrs_1" Description="Default settings for Implementation." AutoIncrementalCheckpoint="false" WriteIncrSynthDcp="false" State="current" SynthRun="synth_1" IncludeInArchive="true" IsChild="false" GenFullBitstream="true" AutoIncrementalDir="$PSRCDIR/utils_1/imports/impl_1" LaunchOptions="-jobs 10 " AutoRQSDir="$PSRCDIR/utils_1/imports/impl_1">
       <Strategy Version="1" Minor="2">
         <StratHandle Name="Vivado Implementation Defaults" Flow="Vivado Implementation 2020"/>
         <Step Id="init_design"/>
@@ -179,7 +198,6 @@
           <Option Id="BinFile">1</Option>
         </Step>
       </Strategy>
-      <GeneratedRun Dir="$PRUNDIR" File="gen_run.xml"/>
       <ReportStrategy Name="Vivado Implementation Default Reports" Flow="Vivado Implementation 2020"/>
       <Report Name="ROUTE_DESIGN.REPORT_METHODOLOGY" Enabled="1"/>
       <RQSFiles/>